Thursday, March 7, 2019

HSSLIVE Chemistry Plus One Notes - HSSLIVE Chemistry is one subject which requires students to pay close attention to the reactions and understand the various processes that go into creating formulas. These can only be achieved with the help of practice, and in class 11, it is important for students to set a strong base for their board exams the next year. The HSSLIVE Chemistry Notes for class 11 need to be precise, explaining all the ins and outs of the subject. We provide the Kerala Board HSSLIVE Chemistry Plus One Notes for free in the hope that students can score better and approach the subject more interestingly. The revision notes are prepared with the best teachers in the business who have many years of experience in the subject.

The HSSLIVE Plus One Chemistry Notes free PDF download is prepared by taking into consideration the current years' updated syllabus by the Kerala Board.

The Chemistry notes for class 11 PDF free download can be accessed with the single click of a button, and all the chapters from Structure of Atom, Some Basic Concepts to Environmental Chemistry are all covered in these notes. It is important that students prepare well before their examinations because this sets the base for their 12th boards. By studying using the Kerala Board Chemistry chapter wise revision notes for class 11, you can score well while also understanding concepts of the subject in a more streamlined manner.

What is chemistry?

The branch of science under which the structure of matter, its properties, uses and interaction with other types of a matter and various forms of energy are studied is called chemistry.

History of Chemistry

Since times immortal when the man come on earth his inquisitive nature implored him to constantly make new discoveries. In Indus Valley Harappan civilizations (500 to 600 BC) metallurgical techniques developed for making copper and bronze articles. In Egyptian civilization the methods of developed to preserve deal bodies as ‘mummies’ and chemicals used for it remain mystery. Even today we still do not know about the chemicals used for preservation of dead bodies. Egyptians had the knowledge of making soap, dyes, glass, etc. Pyramids of Egypt are examples of their progress. Chemists of Egypt worked for discovering touch stone, universal solvent and postion of life. Though they did not succeed in their attempts in the process, they learnt about process like evaporation, distillation, and sublimation which are of help even today.

For treatment, different systems of medicine were developed, allopathy in Europe, Unani in Greece and Chinese in China. In this context, Bodhayan Baanbhatta, Varah Mihir, Arya Bhatta, Nagarjun, Charak, Gargi, Katyayan etc. contributed significantly. Sage Kanad termed the smallest part of as particle matter/elements. On this basis, John Dalton a teacher from Manchester (England), gave his Atomic Theory in 1808 AD.

Ancient Indians had the knowledge of metallurgy, fermentation and preparation of bases, extracts and distillates. The polish done on the ‘Iron Pillar’ of Mehrauli in Delhi is a subject matter of research because no rusting has occurred on it till date.